Islaya molendensis (Vaupel) Backeb. in Cact. Succ. J. (Los Angeles) 23: 119. 1951 Islaya molendensis (Vaupel) Backeb. in Cact. Succ. J. (Los Angeles) 23: 119. 1951is new combination for Echinocactus molendensis Vaupel in Bot. Jahrb. Syst. 50(2-3, Beibl. 111): 24. 1913Taxon for this nameIslaya molendensis (Vaupel) Backeb.